Backbone net rack survivability assessment method based on LDA (Linear Discriminant Analysis) and PCA (Principal Component Analysis)

Abstract

The invention discloses a backbone net rack survivability assessment method based on LDA and PCA. The method comprises the steps as follows: firstly, specific characteristics of a backbone net rack are planned according to differentiation, and a backbone net rack survivability assessment index system is constructed; then, on the basis of the constructed backbone net rack survivability assessment index system, a second level index attribute valve is obtained by using an LDA backbone net rack survivability assessment third level index, a first level index attribute value is obtained by using a PCA backbone net rack survivability assessment second level index, and a backbone net rack survivability assessment result can be obtained according to the first level index attribute value. The method solves the survivability crossing problem of an inter-class backbone net rack scheme and provides a theoretical basis for optimum survivability assessment of the multi-scheme backbone net rack with classified information.

Description

technical field [0001] The invention belongs to the technical field of differentiated planning of electric power systems, and in particular relates to a method for assessing the survivability of a backbone grid based on LDA and PCA. Background technique [0002] With the continuous expansion of power grid scale and complex structure, coupled with the continuous occurrence of extreme natural disasters, it is extremely likely to cause large-scale power outages in the system, which seriously threatens the safe and stable operation of the power grid. Therefore, the academic and engineering circles at home and abroad have proposed to build a core backbone network frame with differentiated planning to deal with natural disasters and ensure continuous power supply for important loads. According to the different search conditions of differentiated planning, multiple types of backbone grid schemes can be constructed. Aiming at the construction of multi-scheme backbone network framew...

AI Technical Summary

Problems solved by technology

Due to the strong human subjectivity of the subjective method, the actual operation is complicated; although the objective method can overcome the shortcomings of the subjective method, it does not have the function of processing classified information schemes, so it may cause the intersection of comprehensive survivability of different types of schemes.

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